Restrictions

Why Seek Medical Supervision?

We recommend that OPTIFAST^®, if used as a Very Low Calorie Diet be taken under the supervision of a healthcare professional. These professionals can tailor the plan to suit your medical conditions, nutritional needs, physical activity levels and lifestyle, helping you find weight-loss success.

Aspects to Consider

Precautions

If any of the following pertain to you, you might need to take these precautions when using the OPTIFAST^® Program:
Over 65 years old
History of severe psychological disturbance
Alcoholism or drug abuse
Cholelithiasis or past history of gall stones
Pancreatitis
Fertility issues
You must seek the advice of a qualified healthcare professional who can help you decide which phase of the OPTIFAST^® Program is right for your weight-management needs.

Medications

There are no active ingredients in OPTIFAST^® products that will directly interact with any medications. However, the weight-loss process can affect the efficacy of some medications, and some medications will impact your weight-loss goals. If you're on medication, it's very important to consult your doctor before starting the OPTIFAST^® Program.

Potential Side Effects

OPTIFAST^® is considered a safe form of weight loss with only minor, transient side effects being observed. These side effects are a result of rapid weight loss and ketosis and may include sensitivity to cold, halitosis (bad breath), headache, hair loss, irritability, postural hypotension, fatigue, muscle cramps and menstrual disturbances.

These side effects are generally insufficient in magnitude or duration to warrant stopping the Program. As with any major dietary adjustment, the first few days on the OPTIFAST^® Program can be challenging. These first few days are commonly known as ‘The 3-Day Challenge’. As the body transitions into ketosis, you may experience some transient side effects like fatigue, hunger, lack of concentration, nausea and headaches. Typically, only mild ketosis occurs during the OPTIFAST^® Program and most symptoms pass in 4-6 days

Allergies & Intolerances

You can still follow the OPTIFAST^® Program if you have allergies or intolerances. We recommend working with your healthcare professional on which OPTIFAST^® product will suit you best, as different products have different allergens present.

Join Our Community

Your weight-loss success is important to us. When you join our community, we offer you everything you need to embark on a healthy, sustainable weight-loss journey.